US2451379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor pump
Assignee: Individual
•
Filing: 1945-05-26
•
Granted: 1948-10-12
•
Expires: 1965-05-26
Abstract
No abstract record available.
Inventors
- 👤 Byron R Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/122; F04B1/124; F04B1/126; F04B1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE496065C
Cited
US1933081A
Cited
US2106236A
Cited
US2169456A
Cited
US2214390A
Cited
US2388462A
Cited
US2402244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |