US2706998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball cock
Assignee: FREDERICK K ROBERTSON
•
Filing: 1950-10-27
•
Granted: 1955-04-26
•
Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Bletcher
- 👤 Irving A Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:26
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/24; F16K31/26; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/7287; Y10T137/7358; Y10T137/7413; Y10T137/7439; Y10T137/7446; Y10T137/7462; Y10T137/7465; Y10T137/7472; Y10T137/7478; Y10T137/8593; Y10T137/86348; Y10T137/86372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US598133A
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US1025827A
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US1156719A
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US2247525A
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US2146794A
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US2300466A
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US2209473A
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US2173070A
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US2270910A
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US2277864A
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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) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |