US2728580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible baby stroller
Assignee: STROLEE OF CALIFORNIA Inc
•
Filing: 1953-02-09
•
Granted: 1955-12-27
•
Expires: 1973-02-09
Abstract
No abstract record available.
Inventors
- 👤 Preisler Leon
- 👤 Samuel M Shone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:29
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/06; B62B7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1576075A
Cited
US1633864A
Cited
US2241799A
Cited
US2469475A
Cited
US2479467A
Cited
US2616719A
Cited
US2678219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |