US2623356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary compressor
Assignee: —
•
Filing: —
•
Granted: 1952-12-30
•
Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:05
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/30; F02C3/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190603061A
Cited
US1180403A
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GB118650A
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GB182893A
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US1552327A
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GB363382A
Cited
GB372104A
Cited
US2055026A
Cited
US2147200A
Cited
US2230666A
Cited
US2211795A
Cited
GB572724A
Cited
US2458600A
Cited
US2437546A
Cited
US2382564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |