Patent US5282808A successfully refreshed from Google Patents.
Patent US1661433A successfully refreshed from Google Patents.
US1661433A
Expired / Lapsed
US
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Compressor
Assignee: COPELAND PRODUCTS Inc
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Filing: 1926-07-19
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Granted: 1928-03-06
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Expires: 1946-07-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas J Litle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:41
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/08; F04B27/10; F01; F01B; F01B3/00; F01B3/04; F01B3/06; F01B3/08; F04B35/00; F04B35/04
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) | 1931-03-06 | 1931-09-05 | 1932-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-06 | 1935-09-05 | 1936-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-06 | 1939-09-05 | 1940-03-06 | $7700.00 | Window Closed / Lapsed |