US2484248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film cartridge
Assignee: GAF Chemicals Corp
•
Filing: 1946-02-12
•
Granted: 1949-10-11
•
Expires: 1966-02-12
Abstract
No abstract record available.
Inventors
- 👤 Bruno C Roehrl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:55
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1694401A
Cited
US1799184A
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GB454434A
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GB462525A
Cited
GB469773A
Cited
FR826152A
Cited
US2153573A
Cited
US2303173A
Cited
US2284487A
Cited
US2381033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |