Patent US4835115A successfully refreshed from Google Patents.
Patent US2628526A successfully refreshed from Google Patents.
US2628526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion-picture viewer
Assignee: Individual
•
Filing: 1948-11-22
•
Granted: 1953-02-17
•
Expires: 1968-11-22
Abstract
No abstract record available.
Inventors
- 👤 Sr Francis T Coffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:05
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE288547C
Cited
US1229697A
Cited
US1190370A
Cited
US1450555A
Cited
US1517542A
Cited
US1557295A
Cited
GB222613A
Cited
US1774097A
Cited
US1869525A
Cited
US1844676A
Cited
US1876845A
Cited
US2124938A
Cited
US2170530A
Cited
US2384621A
Cited
US2481717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |