US3001545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring loaded pop-action safety valves
Assignee: Manning Maxwell and Moore Inc
•
Filing: 1958-10-22
•
Granted: 1961-09-26
•
Expires: 1978-10-22
Abstract
No abstract record available.
Inventors
- 👤 Norman E Ziege
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:19
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; F16K17/0433; F22; F22B; F22B37/00; F22B37/02; F22B37/42; F22B37/44; F22B37/446; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7744; Y10T137/7745; Y10T137/7747
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US154509A
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US191871A
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US426516A
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US538702A
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DE396561C
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US2517858A
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US2821208A
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US2850037A
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US2880751A
Cited
US2878828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |