Patent US3695976A successfully refreshed from Google Patents.
Patent US2062816A successfully refreshed from Google Patents.
US2062816A
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Valve mechanism
Assignee: Sullivan Machinery Co
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Filing: 1930-03-19
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Granted: 1936-12-01
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Expires: 1950-03-19
Abstract
No abstract record available.
Inventors
- 👤 Henry H Mercer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:17
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/102; F04B39/1033; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838
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) | 1939-12-01 | 1940-06-01 | 1940-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-01 | 1944-06-01 | 1944-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-01 | 1948-06-01 | 1948-12-01 | $7700.00 | Window Closed / Lapsed |