US2568339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film advancing means for film magazines
Assignee: GAF Chemicals Corp
•
Filing: 1946-11-29
•
Granted: 1951-09-18
•
Expires: 1966-11-29
Abstract
No abstract record available.
Inventors
- 👤 Carl H Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:33
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; G03B17/265
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |