Patent US2560918A successfully refreshed from Google Patents.
US2560918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent film advancing mechanism utilizing air pressure
Assignee: RCA Corp
•
Filing: 1949-03-22
•
Granted: 1951-07-17
•
Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
- 👤 Alda V Bedford
- 👤 Randall C Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:43
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18
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) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |