US2797737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock for platform rockers
Assignee: JOHNSON HINGE CO Inc
•
Filing: 1954-04-08
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Granted: 1957-07-02
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Expires: 1974-04-08
Abstract
No abstract record available.
Inventors
- 👤 Robert A Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:10
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/03; Y; Y10; Y10S; Y10S297/00; Y10S297/07; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2118689A
Cited
GB679324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |