Patent US2445496A successfully refreshed from Google Patents.
US2445496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic film holder
Assignee: Pako Corp
•
Filing: 1944-08-12
•
Granted: 1948-07-20
•
Expires: 1964-08-12
Abstract
No abstract record available.
Inventors
- 👤 Sardeson Robert
- 👤 Edward H Savela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:30
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/08; G03D13/12; G03D13/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US650660A
Cited
US1496003A
Cited
US1854931A
Cited
US1955575A
Cited
US2186891A
Cited
US2269820A
Cited
US2290831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |