US2759665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air compressors
Assignee: Portable Electric Tools Inc
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Filing: 1954-10-28
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Granted: 1956-08-21
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Expires: 1974-10-28
Abstract
No abstract record available.
Inventors
- 👤 Evan W Wilber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:21
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/02; F04B35/00; F04B35/04; F04B41/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |