Patent US2492418A successfully refreshed from Google Patents.
US2492418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film pressure plate
Assignee: Individual
•
Filing: 1946-11-19
•
Granted: 1949-12-27
•
Expires: 1966-11-19
Abstract
No abstract record available.
Inventors
- 👤 Furer Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:58
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE388576C
Cited
DE550387C
Cited
US1074177A
Cited
US1437895A
Cited
GB242836A
Cited
GB328784A
Cited
US1922742A
Cited
US2234714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |