US2926592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ammonia pumping system for gas-type machine for developing photosensitive sheets
Assignee: PARAGON REVOLUTE CORP
•
Filing: 1956-01-19
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Granted: 1960-03-01
•
Expires: 1976-01-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Wilde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:09
CPC Classifications
G; G03; G03D; G03D7/00; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6606; Y10T137/8593; Y10T137/86187; Y10T137/8622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1904551A
Cited
US2096015A
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US2265613A
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US2475809A
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US2583678A
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US2553543A
Cited
US2675758A
Cited
GB686990A
Cited
US2696771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |