US3131621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic film or paper processing machine
Assignee: Arkay Corp
•
Filing: 1960-11-17
•
Granted: 1964-05-05
•
Expires: 1980-11-17
Abstract
No abstract record available.
Inventors
- 👤 Robert R Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:18
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/08; G03D3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2194345A
Cited
US2541016A
Cited
US2453900A
Cited
US2542830A
Cited
US2869239A
Cited
US2933032A
Cited
US2934000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |