Patent US2053593A successfully refreshed from Google Patents.
US2053593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air compressor
Assignee: Individual
•
Filing: 1933-10-02
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Granted: 1936-09-08
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Expires: 1953-10-02
Abstract
No abstract record available.
Inventors
- 👤 Ziska Adam
- 👤 Conrad A Biebler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:09
CPC Classifications
F; F04; F04B; F04B41/00; F04B41/02; F04B27/00; F04B27/04; F04B27/053; F04B35/00; F04B35/04; F04B39/00; F04B39/04; F04B39/16
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) | 1939-09-08 | 1940-03-09 | 1940-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-08 | 1944-03-09 | 1944-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-08 | 1948-03-09 | 1948-09-08 | $7700.00 | Window Closed / Lapsed |