US2603272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Framework for playground appa
Assignee: —
•
Filing: —
•
Granted: 1952-07-15
•
Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:03
CPC Classifications
A; A63; A63G; A63G9/00; A63G9/12; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32885; Y10T403/34; Y10T403/347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US279267A
Cited
US488349A
Cited
US714554A
Cited
US1033187A
Cited
US1343124A
Cited
US1975463A
Cited
US1953774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |