Patent US3481332A successfully refreshed from Google Patents.
US3481332A
Expired / Lapsed
US
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Walker and cast reinforcement
Assignee: Individual
•
Filing: 1965-10-13
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Granted: 1969-12-02
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Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Marcia Lee Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:19
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/04; A61F13/041; A61F13/045; A43; A43B; A43B21/00; A43B21/36; A43B21/42; A43B21/433; A43B3/00; A43B3/0036; A43B3/0042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1290095A
Cited
US1387988A
Cited
US2264570A
Cited
US2605761A
Cited
FR1014877A
Cited
US2888919A
Cited
US3068861A
Cited
US3307536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |