Patent US2453374A successfully refreshed from Google Patents.
US2453374A
Expired / Lapsed
US
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Compressor
Assignee: Individual
•
Filing: 1944-08-28
•
Granted: 1948-11-09
•
Expires: 1964-08-28
Abstract
No abstract record available.
Inventors
- 👤 Kollsman Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:17
CPC Classifications
F; F04; F04C; F04C19/00; F04C19/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US953222A
Cited
US1038769A
Cited
US1262533A
Cited
US1900620A
Cited
US1924421A
Cited
US2201575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |