Patent US2699356A successfully refreshed from Google Patents.
US2699356A
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US
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Jet pipe signal device
Assignee: Askania Regulator Co
•
Filing: 1950-10-14
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Granted: 1955-01-11
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Expires: 1970-10-14
Abstract
No abstract record available.
Inventors
- 👤 Ziebolz Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:19
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/10; F15C3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1431627A
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US2047922A
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US2104627A
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US2125983A
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US2205228A
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US2341652A
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US2384515A
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US2606093A
Cited
US2518574A
Cited
US2451263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |