Patent US3011996A successfully refreshed from Google Patents.
Patent US1940384A successfully refreshed from Google Patents.
US1940384A
Expired / Lapsed
US
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Rotary compressor
Assignee: Individual
•
Filing: 1928-04-18
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Granted: 1933-12-19
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Expires: 1948-04-18
Abstract
No abstract record available.
Inventors
- 👤 Zoller Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:13
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0827; F01C21/0836; F04; F04C; F04C18/00; F04C18/30; F04C18/34; F04C18/344; F04C18/3441; F04C18/352
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) | 1936-12-18 | 1937-06-19 | 1937-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-12-18 | 1941-06-19 | 1941-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-12-18 | 1945-06-19 | 1945-12-19 | $7700.00 | Window Closed / Lapsed |