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US2808191A
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Assignee: Individual
•
Filing: 1953-07-10
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Granted: 1957-10-01
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Expires: 1973-07-10
Abstract
No abstract record available.
Inventors
- 👤 Charlotte A Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:58
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/06; A47G23/0608; Y; Y10; Y10S; Y10S229/00; Y10S229/902; Y10S229/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323170A
Cited
US920180A
Cited
US1380561A
Cited
US1684002A
Cited
US2172172A
Cited
GB651199A
Cited
US2547716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |