US2473452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force cup for cleaning drainpipes and the like
Assignee: Individual
•
Filing: 1945-05-02
•
Granted: 1949-06-14
•
Expires: 1965-05-02
Abstract
No abstract record available.
Inventors
- 👤 Eben L Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:50
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)
US379091A
Cited
US544908A
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US1193476A
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US963060A
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US1218690A
Cited
US1218764A
Cited
US1327768A
Cited
US1796340A
Cited
US1900275A
Cited
US2035379A
Cited
US2176553A
Cited
US2187043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |