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Patent US2453631A successfully refreshed from Google Patents.
US2453631A
Expired / Lapsed
US
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Combination baby carriage and shopping cart
Assignee: Individual
•
Filing: 1946-04-11
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Granted: 1948-11-09
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Expires: 1966-04-11
Abstract
No abstract record available.
Inventors
- 👤 Jack M Leser
- 👤 Severeign Norman Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:28
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/0016; B62B9/00; B62B9/26; B62B2207/00; B62B2207/02
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) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |