Patent US3198575A successfully refreshed from Google Patents.
US3198575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wieel chair with posture adjustment
Assignee: Individual
•
Filing: 1964-02-06
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Granted: 1965-08-03
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Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 Harry O Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:11
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/12; A61G5/125; A61G5/128; A61G5/1056; A61G5/107; A61G5/1075; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A WHEEL CHAIR COMPRISING A WHEELED BASE FRAME, A SEAT, BACK AND FOOT REST FRAME PIVOTALLY MOUNTED FOR BACKWARD TILTING ON SAID BASE FRAME, A TOOTHED LATCH BAR ON SAID PIVOTED FRAME, A LATCH DOG ON SAID BASE FRAME ENGAGEABLE WITH SAID LATCH BAR, VERTICAL SOCKETS ON SAID BASE FRAME, AN ARM RESET DETACHABLY MOUNTED IN SAID SOCKETS, A RIGID HAND GRIP ON THE UNDER SIDE OF SAID ARM REST PROVIDING A THRUSTING AND PULLING POINT FOR AN OCCUPANT TO TILT SAID PIVOTED FRAME, A SQUEEZE-TYPE RELEASE LEVER FOR SAID LATCH DOG MOUNTED IN SAID HAND GRIP, AND A CONNECTION BETWEEN SAID RELEASE LEVER AND LATCH DOG WHICH IS DETACHABLE WHEN THE ARM REST IS LIFTED OUT OF SAID SOCKETS.
Claim 2
Dependent Claim
120 words
A WHEEL CHAIR COMPRISING A WHEELED BASE FRAME, A SEAT, BACK AND FOOT REST FRAME PIVOTALLY MOUNTED FOR BACKWARD TILTING ON SAID BASE FRAME, A TOOTHED LATCH BAR ON SAID PIVOTED FRAME, A LATCH DOG ON SAID BASE FRAME ENGAGEABLE WITH SAID LATCH BAR, VERTICAL SOCKETS ON SAID BASE FRAME, AN ARM RESET DETACHABLY MOUNTED IN SAID SOCKETS, A RIGID HAND GRIP ON THE UNDER SIDE OF SAID ARM REST PROVIDING A THRUSTING AND PULLING POINT FOR AN OCCUPANT TO TILT SAID PIVOTED FRAME, A SQUEEZE-TYPE RELEASE LEVER FOR SAID LATCH DOG MOUNTED IN SAID HAND GRIP, AND A CONNECTION BETWEEN SAID RELEASE LEVER AND LATCH DOG WHICH IS DETACHABLE WHEN THE ARM REST IS LIFTED OUT OF SAID SOCKETS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |