Patent US3306660A successfully refreshed from Google Patents.
US3306660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocking wheel chair apparatus
Assignee: Individual
•
Filing: 1966-03-28
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Granted: 1967-02-28
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Expires: 1986-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jeffry L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:12
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
CHAIR ROCKING MEANS COMPRISING: FIRST AND SECOND ARCUATE MEMBERS; SPANNING MEANS CONNECTED TO SAID MEMBERS AND SECURING THEM IN PARALLEL HORIZONTALLY SPACED RELATION, AT LEAST ONE OF SAID ARCUATE MEMBERS HAVING UPWARDLY PROJECTING GUIDE MEANS THEREON AND EXTENDING THEREALONG,
Claim 2
Dependent Claim
39 words
CHAIR ROCKING MEANS COMPRISING: FIRST AND SECOND ARCUATE MEMBERS; SPANNING MEANS CONNECTED TO SAID MEMBERS AND SECURING THEM IN PARALLEL HORIZONTALLY SPACED RELATION, AT LEAST ONE OF SAID ARCUATE MEMBERS HAVING UPWARDLY PROJECTING GUIDE MEANS THEREON AND EXTENDING THEREALONG,
References Cited (Backward Citations)
US776665A
Cited
US900548A
Cited
US1367390A
Cited
US2352966A
Cited
US2662581A
Cited
US2829390A
Cited
US3161417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |