US2554215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat opening case
Assignee: Individual
•
Filing: 1949-06-07
•
Granted: 1951-05-22
•
Expires: 1969-06-07
Abstract
No abstract record available.
Inventors
- 👤 Horace R Schell
- 👤 Clarence F Schell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:56
CPC Classifications
A; A45; A45C; A45C3/00; A45C3/02; Y; Y10; Y10S; Y10S190/00; Y10S190/90; Y10S190/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1090553A
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US1149634A
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US1598719A
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US1736640A
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US2091531A
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US2106911A
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US2173120A
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US2181208A
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US2214632A
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US2226387A
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US2493182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |