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US3249387A
Expired / Lapsed
US
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Swinging arm rest
Assignee: Mobilaid Inc
•
Filing: 1965-02-16
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Granted: 1966-05-03
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Expires: 1985-02-16
Abstract
No abstract record available.
Inventors
- 👤 William J Pivacek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:17
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/12; A61G5/1054; A61G5/125; A61G5/128; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A WHEEL CHAIR HAVING WHEELS, SIDE FRAMES AND A SEAT WITH FORWARD AND REARWARD ENDS, A MOVABLE ARM REST AND SUPPORT THEREFOR COMPRISING PIVOTALLY CONNECTED ELEMENTS IN PARALLELOGRAM RELATION, ONE OF SAID ELEMENTS COMPRISING A HORIZONTAL PART OF A SIDE FRAME HAVING FORWARDLY AND REARWARDLY DISPOSED PIVOTAL SUPPORTS, A SECOND OF SAID ELEMENTS COMPRISING THE ARM REST PROPER DISPOSED ABOVE AND PARALLEL TO SAID FRAME PART, A THIRD ELEMENT LYING PARALLEL TO SAID FIRST AND SECOND ELEMENTS AND DISPOSED ADJACENT TO ONE OF THEM, AND HORIZONTALLY SPACED. UPSTANDING, PARALLEL FORWARD AND REARWARD LINKS PIVOTALLY CONNECTED TO SAID SUPPORTS RESPECTIVELY AND TO THE ENDS OF SAID ELEMENTS, TWO OF SAID ELEMENTS POSITIVELY ENGAGING
Claim 2
Dependent Claim
113 words
IN A WHEEL CHAIR HAVING WHEELS, SIDE FRAMES AND A SEAT WITH FORWARD AND REARWARD ENDS, A MOVABLE ARM REST AND SUPPORT THEREFOR COMPRISING PIVOTALLY CONNECTED ELEMENTS IN PARALLELOGRAM RELATION, ONE OF SAID ELEMENTS COMPRISING A HORIZONTAL PART OF A SIDE FRAME HAVING FORWARDLY AND REARWARDLY DISPOSED PIVOTAL SUPPORTS, A SECOND OF SAID ELEMENTS COMPRISING THE ARM REST PROPER DISPOSED ABOVE AND PARALLEL TO SAID FRAME PART, A THIRD ELEMENT LYING PARALLEL TO SAID FIRST AND SECOND ELEMENTS AND DISPOSED ADJACENT TO ONE OF THEM, AND HORIZONTALLY SPACED. UPSTANDING, PARALLEL FORWARD AND REARWARD LINKS PIVOTALLY CONNECTED TO SAID SUPPORTS RESPECTIVELY AND TO THE ENDS OF SAID ELEMENTS, TWO OF SAID ELEMENTS POSITIVELY ENGAGING
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |