Applications for Extension of Patents

Join Our Community of Science Lovers!

On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.

FORMING SCREW THREADS, ETC., IN THE NECKS OF GLASS BOTTLES AND SIMILAR ARTICLES.—Sarah T. Stone, of Philadelphia, Pa., adminiitratrix of the estate of Amasa Stone, deceased, has applied for an extension of the above patent. Day of hearing July 26,1869. MANUFACTURE OF ZINC WHITE.—John E. Burrows, of Newark, N. J., has petitioned for the extension of the above patent. Day of hearing, July 26, 1869. Inventions Patented in England by Americans. [Compiled from the “Journal of the Commissioners of Patents.”] PROVISIONAL PROTECTION FOB SIX MONTHS. 1,255.—APPARATUS FOE PEETENTING THE BURSTING OP STEAM BOILEES. —J. C. Cochrane, Rochester, N. Y. April 23,1869. 1,256.—PUDDLING IKON.—Charles Hewitt, Trenton, N. J. April 23,1869. 1,273.—REAPING AND MOWING MACHINE.—9. C. RidgaWay, Baltimore, Md. April 24,1869. Ij387.—REVERSIBLE PABASOL.—J. E. Banks, New York city. April 36, 1,288.—STEAM GENEEATOES AND CONSDENEBS.—B. T. Babbitt, New York city. April 26,1869. 1,291.—METHOD OP PEETENTING THE COEEOSION OF STEAM BOILEES.—G . Hawxhurst and James Pollack, San Francisco, Cal. April 26,1 6y. 1,293.—LOCKS.—.J ames Sargent, Rochester, N.Y. April 27,1869. 1,315.—RiGGlNG op SQUARE-RIGGED VESSELS.—R. B. Forbes, Boston, Mass. April 28, 1869. 1,321.—APPAEATUS POE GEWEKATING AND CONDENSING STEAM, AND STEAM GENERATORS.—T. T. Prosser, Chicago, 111. April 28,1869.

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American