Patent US2844826A successfully refreshed from Google Patents.
US2844826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure device
Assignee: Individual
•
Filing: 1954-08-03
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Granted: 1958-07-29
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Expires: 1974-08-03
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Cheiten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:04
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/304; E03C1/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US219428A
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US646455A
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US646668A
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US1644436A
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US1575697A
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DE451902C
Cited
US1925984A
Cited
US2042372A
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US2066773A
Cited
US2188960A
Cited
US2496525A
Cited
US2463458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |