Patent US2767490A successfully refreshed from Google Patents.
US2767490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip soles for converting over-the-shoe boots to over-the-foot boots
Assignee: Marbill Co
•
Filing: 1953-04-16
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Granted: 1956-10-23
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Expires: 1973-04-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Maurice C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:20
CPC Classifications
A; A43; A43B; A43B17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US558345A
Cited
US49874A
Cited
US456677A
Cited
US466297A
Cited
US536590A
Cited
US545705A
Cited
US197030A
Cited
US856387A
Cited
US889093A
Cited
US943243A
Cited
US1148604A
Cited
US1249000A
Cited
US1334213A
Cited
US1566364A
Cited
US1417170A
Cited
US1544625A
Cited
US1550716A
Cited
US1580170A
Cited
US1697589A
Cited
US1781715A
Cited
US1840514A
Cited
US1926683A
Cited
US2037170A
Cited
US2054151A
Cited
FR865645A
Cited
US2433329A
Cited
US2440705A
Cited
US2461355A
Cited
US2502774A
Cited
US2603891A
Cited
US2635363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |