Patent US2594388A successfully refreshed from Google Patents.
US2970514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light intensifying means for copying camera
Assignee: Peerless Photo Products Inc
•
Filing: 1956-03-20
•
Granted: 1961-02-07
•
Expires: 1976-03-20
Abstract
No abstract record available.
Inventors
- 👤 Carroll B Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:48
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522; G03B27/525; G03B27/528
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1344986A
Cited
US1460071A
Cited
US2033290A
Cited
US2131501A
Cited
DE698762C
Cited
US2194808A
Cited
US2292825A
Cited
US2291006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |