US3284135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental chair
Assignee: J Morita Manufaturing Corp
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Filing: 1964-06-15
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Granted: 1966-11-08
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Hiramatsu Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:20
CPC Classifications
A; A61; A61G; A61G15/00; A61G15/02; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/0244; A61G2203/00; A61G2203/70; A61G2203/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A DENTAL CHAIR COMPRISING: A SEAT FRAME; BEARING MEANS MOUNTED ON SAID SEAT FRAME; A BACK FRAME SO ARRANGED RELATIVE TO SAID SEAT FRAME AS TO BE RECEIVED BY SAID BEARING MEANS SLIDABLY THEREON; AND DRIVING AND GUIDE MEANS COUPLED WITH THE LOWER END OF SAID BACK FRAME AND WITH SAID SEAT FRAME FOR MOVING THE LOWER END OF SAID BACK FRAME ALONG A PREDETERMINED CURVE SUCH THAT AS THE ANGLE BETWEEN SAID BACK FRAME AND SAID SEAT FRAME IS INCREASED SAID BACK FRAME IS LOWERED.
Claim 2
Dependent Claim
86 words
A DENTAL CHAIR COMPRISING: A SEAT FRAME; BEARING MEANS MOUNTED ON SAID SEAT FRAME; A BACK FRAME SO ARRANGED RELATIVE TO SAID SEAT FRAME AS TO BE RECEIVED BY SAID BEARING MEANS SLIDABLY THEREON; AND DRIVING AND GUIDE MEANS COUPLED WITH THE LOWER END OF SAID BACK FRAME AND WITH SAID SEAT FRAME FOR MOVING THE LOWER END OF SAID BACK FRAME ALONG A PREDETERMINED CURVE SUCH THAT AS THE ANGLE BETWEEN SAID BACK FRAME AND SAID SEAT FRAME IS INCREASED SAID BACK FRAME IS LOWERED.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |