Patent US4075435A successfully refreshed from Google Patents.
Patent US2034370A successfully refreshed from Google Patents.
US2034370A
Expired / Lapsed
US
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Liquid supply system
Assignee: Aqua Systems Inc
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Filing: 1928-11-06
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Granted: 1936-03-17
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Expires: 1948-11-06
Abstract
No abstract record available.
Inventors
- 👤 Charles F Beckwith
- 👤 Main Charles Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:15
CPC Classifications
F; F02; F02B; F02B1/00; F02M; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4388; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7329; Y10T137/7358; Y10T137/7361; Y10T137/7381; Y10T137/7394; Y10T137/7397; Y10T137/7404
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) | 1939-03-17 | 1939-09-16 | 1940-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-17 | 1943-09-16 | 1944-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-17 | 1947-09-16 | 1948-03-17 | $7700.00 | Window Closed / Lapsed |