Patent US1819709A successfully refreshed from Google Patents.
US1819709A
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Compressor mechanism
Assignee: Sullivan Machinery Co
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Filing: 1924-04-14
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Granted: 1931-08-18
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Expires: 1944-04-14
Abstract
No abstract record available.
Inventors
- 👤 Fred D Holdsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:07
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/0094; F04B35/00; F04B35/06; F04B39/0027; F04B39/0044; F04B39/02; F04B39/0223; F04B39/023; F04B39/0238; F04B39/0246; F04B39/12; F04B39/128; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6914; Y10T74/00; Y10T74/19; Y10T74/19851
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) | 1934-08-17 | 1935-02-16 | 1935-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-08-17 | 1939-02-16 | 1939-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-08-17 | 1943-02-16 | 1943-08-18 | $7700.00 | Window Closed / Lapsed |