US3039819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swing device
Assignee: American Playground Devices Co
•
Filing: 1960-06-17
•
Granted: 1962-06-19
•
Expires: 1980-06-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Williams
- 👤 Warren P Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:34
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/10; A47D13/105; A63; A63G; A63G9/00; Y; Y10; Y10S; Y10S297/00; Y10S297/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1363453A
Cited
US1839579A
Cited
US1812947A
Cited
US1953774A
Cited
US2553932A
Cited
US2589803A
Cited
US2508822A
Cited
US2967566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |