US2628015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine-driven air compressor
Assignee: Individual
•
Filing: 1949-11-09
•
Granted: 1953-02-10
•
Expires: 1969-11-09
Abstract
No abstract record available.
Inventors
- 👤 Franz J Neugebauer
- 👤 Hans O Berkner
- 👤 Erwin O A Naumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:52
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/002; F02; F02B; F02B41/00; F02B41/02; F02B41/10; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F04B25/00; F04B41/00; F04B41/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1816737A
Cited
US1934880A
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US2281821A
Cited
US2321097A
Cited
US2364013A
Cited
US2373780A
Cited
US2480095A
Cited
US2487532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |