Patent US3230320A successfully refreshed from Google Patents.
US3230320A
Expired / Lapsed
US
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Dental chair
Assignee: Individual
•
Filing: 1962-04-26
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Granted: 1966-01-18
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Expires: 1982-04-26
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
A; A61; A61G; A61G15/00; A61G15/10; A61G15/12; A61G15/125; H; H04; H04R; H04R5/00; H04R5/02; H04R5/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A COMBINATION DENTAL CHAIR HEAD REST AND SOUND SYSTEM COMPRISING A LATERALLY ARCUATE HEAD SUPPORTING PORTION HAVING A TOP EDGE AND OPPOSITE FORWARDLY DIRECTED EDGES, A FORWARDLY EXTENDING PROJECTION ON EACH OF SAID FORWARD EDGES ADJACENT THE LOWER END THEREOF, THE INNER SURFACE OF SAID FORWARD PROJECTIONS FORMING JAW SUPPORTS FOR A PATIENT''S HEAD ENGAGED IN THE HEAD REST, AND A SOUND SPEAKER MOUNTED IN AT LEAST ONE OF SAID PROJECTIONS, SAID SPEAKER OPENING ON THE INNER SURFACE OF SAID PROJECTION AND BEING ARRANGED TO BROADCAST TO THE PATIENT.
Claim 2
Dependent Claim
89 words
A COMBINATION DENTAL CHAIR HEAD REST AND SOUND SYSTEM COMPRISING A LATERALLY ARCUATE HEAD SUPPORTING PORTION HAVING A TOP EDGE AND OPPOSITE FORWARDLY DIRECTED EDGES, A FORWARDLY EXTENDING PROJECTION ON EACH OF SAID FORWARD EDGES ADJACENT THE LOWER END THEREOF, THE INNER SURFACE OF SAID FORWARD PROJECTIONS FORMING JAW SUPPORTS FOR A PATIENT''S HEAD ENGAGED IN THE HEAD REST, AND A SOUND SPEAKER MOUNTED IN AT LEAST ONE OF SAID PROJECTIONS, SAID SPEAKER OPENING ON THE INNER SURFACE OF SAID PROJECTION AND BEING ARRANGED TO BROADCAST TO THE PATIENT.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |