US2059649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator
Assignee: Allis Chalmers Corp
•
Filing: 1934-07-18
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Granted: 1936-11-03
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Expires: 1954-07-18
Abstract
No abstract record available.
Inventors
- 👤 Pfau Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:16
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/16; F03B3/18; F03B3/183; G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; F03B11/00; F03B11/004; F03B3/186; F05; F05B; F05B2210/00; F05B2210/40; F05B2210/403; F05B2270/00; F05B2270/30; F05B2270/301; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2524; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2612; Y10T137/2635
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) | 1939-11-03 | 1940-05-04 | 1940-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-03 | 1944-05-04 | 1944-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-03 | 1948-05-04 | 1948-11-03 | $7700.00 | Window Closed / Lapsed |