US2880993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous film feeder
Assignee: Individual
•
Filing: 1955-11-09
•
Granted: 1959-04-07
•
Expires: 1975-11-09
Abstract
No abstract record available.
Inventors
- 👤 William H Harries
- 👤 Herman E Pickens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US887431A
Cited
GB177963A
Cited
GB325083A
Cited
AT134713B
Cited
GB401590A
Cited
GB496974A
Cited
US2279022A
Cited
US2398639A
Cited
FR904697A
Cited
US2781689A
Cited
US2740628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |