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Patent US3051270A successfully refreshed from Google Patents.
US3051270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking mechanism for mobile units
Assignee: Ritter Co Inc
•
Filing: 1958-12-03
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Granted: 1962-08-28
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Expires: 1978-12-03
Abstract
No abstract record available.
Inventors
- 👤 Karl H Burzlaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:47
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/10; A61G13/104; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20672; Y10T74/20708
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA489278A
Cited
GB190608836A
Cited
US1955504A
Cited
US2138433A
Cited
US2110227A
Cited
US2359583A
Cited
US2975468A
Cited
US2880027A
Cited
US2950121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |