Patent US1626557A successfully refreshed from Google Patents.
US1626557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air compressor or pump
Assignee: ROTARY COMPRESSOR Co
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Filing: 1918-03-13
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Granted: 1927-04-26
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Expires: 1938-03-13
Abstract
No abstract record available.
Inventors
- 👤 Walter G E Rolaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:09
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/32; F04C18/00; F04C18/30; F04C18/32; F04C18/324; F04C18/34; F04C18/344
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) | 1930-04-25 | 1930-10-25 | 1931-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-04-25 | 1934-10-25 | 1935-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-04-25 | 1938-10-25 | 1939-04-26 | $7700.00 | Window Closed / Lapsed |