US2534732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film guide for stripfilm projectors
Assignee: Viewlex Inc
•
Filing: 1949-04-26
•
Granted: 1950-12-19
•
Expires: 1969-04-26
Abstract
No abstract record available.
Inventors
- 👤 Florindo J Perillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:11
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/08; G03B23/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1305405A
Cited
US1059067A
Cited
US1154819A
Cited
US1174208A
Cited
US1377727A
Cited
US1939561A
Cited
US2054586A
Cited
DE687304C
Cited
US2172256A
Cited
US2231743A
Cited
US2256899A
Cited
US2330709A
Cited
US2358692A
Cited
US2457913A
Cited
US2457914A
Cited
US2438710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |