US2715992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor unloader
Assignee: Individual
•
Filing: 1951-06-26
•
Granted: 1955-08-23
•
Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Robert W Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:57
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/24; F25; F25B; F25B2600/00; F25B2600/02; F25B2600/026; F25B2600/0261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US917642A
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US1105061A
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US1742407A
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US1956962A
Cited
US1920003A
Cited
US2006584A
Cited
US2123123A
Cited
US2531315A
Cited
US2577902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |