US2797873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient telescoping diaphragm
Assignee: Standard Thomson Corp
•
Filing: 1952-02-12
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Granted: 1957-07-02
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Expires: 1972-02-12
Abstract
No abstract record available.
Inventors
- 👤 John E Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:44
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/04; F16J3/047; G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/123; Y; Y10; Y10S; Y10S236/00; Y10S236/05; Y10S33/00; Y10S33/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR600610A
Cited
US1964745A
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US2044127A
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GB410254A
Cited
US2310519A
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US2356958A
Cited
US2471514A
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US2534251A
Cited
US2507466A
Cited
US2612419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |