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US3064964A
Expired / Lapsed
US
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Door closer mechanism
Assignee: Individual
•
Filing: 1959-12-31
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Granted: 1962-11-20
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Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 Carlson Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:17
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/04; E05F3/10; E05F3/106; E05F3/22; E05F3/225; E05Y; E05Y2201/00; E05Y2201/10; E05Y2201/11; E05Y2800/00; E05Y2800/10; E05Y2800/12; E05Y2800/26; E05Y2800/28; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |