US3345075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning gramophone discs
Assignee: Decca Ltd
•
Filing: 1964-07-20
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Granted: 1967-10-03
•
Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Phillipson Alan
- 👤 Spiller Basil Harry Royston
- 👤 Cheesman Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:17
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/68; G11B3/70; B; B29; B29C; B29C43/00; B29C43/02; G11B3/58; G11B3/589; B29L; B29L2017/00; B29L2017/001; B29L2017/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
APPARATUS FOR CLEANING A GRAMOPHONE RECORD DISC COMPRISING MEANS FOR SUPPORTING THE DISC IN A VERTICAL PLANE FOR ROTATION ABOUT ITS AXIS, MEANS FOR DIRECTING JETS OF GAS ON TO THE DISC TO CAUSE THE DISC TO ROTATE SO THAT DUST PARTICLES ARE REMOVED BY THE COMBINED EFFECT OF CENTRIFUGAL FORCE AND THE GAS JETS, A LATCH FOR SUPPORTING THE RIM OF THE DISC, SAID LATCH BEING WITHDRAWABLE TO RELEASE THE DISC FROM THE APPARATUS, AND GUIDE MEANS ADAPTED TO BEAR AGAINST THE FACES OF THE DISC.
Claim 2
Dependent Claim
87 words
APPARATUS FOR CLEANING A GRAMOPHONE RECORD DISC COMPRISING MEANS FOR SUPPORTING THE DISC IN A VERTICAL PLANE FOR ROTATION ABOUT ITS AXIS, MEANS FOR DIRECTING JETS OF GAS ON TO THE DISC TO CAUSE THE DISC TO ROTATE SO THAT DUST PARTICLES ARE REMOVED BY THE COMBINED EFFECT OF CENTRIFUGAL FORCE AND THE GAS JETS, A LATCH FOR SUPPORTING THE RIM OF THE DISC, SAID LATCH BEING WITHDRAWABLE TO RELEASE THE DISC FROM THE APPARATUS, AND GUIDE MEANS ADAPTED TO BEAR AGAINST THE FACES OF THE DISC.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |