US2129960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary compressor
Assignee: B P CRAIG
•
Filing: 1937-01-30
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Granted: 1938-09-13
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Expires: 1957-01-30
Abstract
No abstract record available.
Inventors
- 👤 Harry A Presby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:43
CPC Classifications
F; F04; F04C; F04C29/00; F04C29/12; F04C29/124; F04C29/126; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0827; F01C21/0845; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/042; F16K15/044; F16K2200/00; F16K2200/20; F16K2200/204; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/7928; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-09-12 | 1942-03-14 | 1942-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-09-12 | 1946-03-14 | 1946-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-09-12 | 1950-03-14 | 1950-09-13 | $7700.00 | Window Closed / Lapsed |