US3408683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closer
Assignee: Individual
•
Filing: 1965-05-25
•
Granted: 1968-11-05
•
Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Zahn Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:32
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/04; E05F3/10; E05F3/108; E05F3/22; E05F3/227; F; F16; F16F; F16F9/00; F16F9/06; F16F9/08; F16F9/10; F16F9/14; F16F9/16; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/644; E05Y2201/656; E05Y2600/00; E05Y2600/40; E05Y2600/41; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; F16F2230/00; F16F2230/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1457122A
Cited
US1962291A
Cited
US2596676A
Cited
US3025558A
Cited
US3057004A
Cited
US3143757A
Cited
US3110924A
Cited
US3161908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |