Patent US2865729A successfully refreshed from Google Patents.
US2865729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated smokeless powder
Assignee: Olin Corp
•
Filing: 1955-04-12
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Granted: 1958-12-23
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Expires: 1975-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jack J Foster
- 👤 Joseph M Allovio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:10
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007; C06B45/00; C06B45/18; C06B45/20; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/111
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A SUBSTANTIALLY SPHERICAL SMOKELESS POWDER GRAIN CONSISTING OF A NITROCELLULOSE PROPELLENT CORE WITH A COATING OF TIN DIOXIDE ON THE SURFACE THEREOF, SAID TIN DIOXIDE BEING PRESENT IN THE AMOUNT OF FROM ABOUT 0.3 TO ABOUT 1.5 PARTS BY WEIGHTY PER EACH 100 PARTS BY WEIGHT OF SAID GRAIN.
Claim 2
Dependent Claim
49 words
A SUBSTANTIALLY SPHERICAL SMOKELESS POWDER GRAIN CONSISTING OF A NITROCELLULOSE PROPELLENT CORE WITH A COATING OF TIN DIOXIDE ON THE SURFACE THEREOF, SAID TIN DIOXIDE BEING PRESENT IN THE AMOUNT OF FROM ABOUT 0.3 TO ABOUT 1.5 PARTS BY WEIGHTY PER EACH 100 PARTS BY WEIGHT OF SAID GRAIN.
References Cited (Backward Citations)
US2038700A
Cited
US2304037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |