US2916205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure responsive mechanism
Assignee: International Business Machines Corp
•
Filing: 1956-10-19
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Granted: 1959-12-08
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Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Frank A Litz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:06
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; G; G06; G06G; G06G5/00; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/50; F15B2211/505; F15B2211/50554; F15B2211/50563; F15B2211/515; F15B2211/5158; F15B2211/52; F15B2211/526; F15B2211/565; F15B2211/60; F15B2211/665; F15B2211/6653; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7055; Y; Y10; Y10S; Y10S116/00; Y10S116/42; Y10S91/00; Y10S91/01; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788
Claims Analysis
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References Cited (Backward Citations)
US177871A
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US285883A
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US691692A
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US760592A
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US747772A
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US1922513A
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US2840044A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |