US2429965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breaking of emulsions
Assignee: Individual
•
Filing: 1945-12-04
•
Granted: 1947-10-28
•
Expires: 1965-12-04
Abstract
No abstract record available.
Inventors
- 👤 Shearer Alexander Paterson
- 👤 Witten Leslie Benjamin
- 👤 Cubin Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:00
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/02; C10G17/04; C10G17/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2260945A
Cited
US2211747A
Cited
US2286184A
Cited
US2269250A
Cited
US2355460A
Cited
US2399206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |