Patent US3056466A successfully refreshed from Google Patents.
US3056466A
Expired / Lapsed
US
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Stand-off for boarding ladder
Assignee: Individual
•
Filing: 1961-08-07
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Granted: 1962-10-02
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Tom D Wall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:53
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/34; B; B63; B63B; B63B27/00; B63B27/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US396552A
Cited
US1393922A
Cited
US2401251A
Cited
US2843393A
Cited
US2924291A
Cited
US2992697A
Cited
US3006434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |