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US2637360A
Expired / Lapsed
US
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Cover for toilet flush tanks
Assignee: Individual
•
Filing: 1951-02-07
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Granted: 1953-05-05
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Expires: 1971-02-07
Abstract
No abstract record available.
Inventors
- 👤 Paul E Doebler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:40
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/01; Y; Y10; Y10S; Y10S4/00; Y10S4/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |