US2956302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closer
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1958-05-28
•
Granted: 1960-10-18
•
Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 Henry D Rolph
- 👤 Oben-Stintenberg Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:44
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/04; E05F3/06; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2159
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1114184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |