US3042957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closer
Assignee: Kawneer Co Inc
•
Filing: 1959-11-02
•
Granted: 1962-07-10
•
Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Dan C Muessel
- 👤 Harold E Gramse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:44
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/04; E05F3/10; E05F3/102; E05F3/22; E05F3/227; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10S; Y10S16/00; Y10S16/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2820243A
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US2971212A
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US2834436A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |