US3380447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ankle device for supporting an individual in an inverted position
Assignee: Gravity Guidance Inc
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Filing: 1965-10-19
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Granted: 1968-04-30
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Robert M Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:09
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0218; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/164; A61H2201/1642; A63; A63B; A63B2208/00; A63B2208/02; A63B2208/0285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A DEVICE OF THE CLASS DESCRIBED, AN INVERSION BOOT ADAPTED FOR ATTACHMENT TO A PERSON''S LEG INCLUDING A FIRST JAW MEMBER HAVING OPPOSITE ENDS AND A SECOND JAW MEMBER HAVING OPPOSITE ENDS, SAID FIRST JAW MEMBER HINGEDLY SECURED AT ONE OF ITS ENDS TO ONE END OF SAID SECOND JAW MEMBER,
Claim 2
Dependent Claim
52 words
IN A DEVICE OF THE CLASS DESCRIBED, AN INVERSION BOOT ADAPTED FOR ATTACHMENT TO A PERSON''S LEG INCLUDING A FIRST JAW MEMBER HAVING OPPOSITE ENDS AND A SECOND JAW MEMBER HAVING OPPOSITE ENDS, SAID FIRST JAW MEMBER HINGEDLY SECURED AT ONE OF ITS ENDS TO ONE END OF SAID SECOND JAW MEMBER,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |