Patent US3567547A successfully refreshed from Google Patents.
US3567547A
Expired / Lapsed
US
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Method of providing thin glass parts of precise dimensions
Assignee: ROY D MATTSON
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Filing: 1967-06-22
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Granted: 1971-03-02
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Expires: 1987-06-22
Abstract
Abstract A METHOD OF MACHINING THIN GLASS PARTS WITH PRECISE DIMENSIONS INCLUDING APPLYING AN ABRASIVE RESISTANT COATING TO THE PARTS AND FORMING THE PARTS INTO A SOLID BLOCK BY PROVIDING AN ADHESIVE THEREBETWEEN. THE PARTS CAN THEN BE PRECISELY MACHINED, AFTER WHICH THE PARTS ARE SEPARATED BY REMOVING THE ADHESIVE WITH A FIRST SOLVENT, WHICH FIRST SOLVENT DOES NOT AFFECT THE ABRASIVE RESISTANT COATING. IMMEDIATELY PRIOR TO USE THE ABRASIVE RESISTANT COATING CAN BE REMOVED THROUGH THE USE OF A SECOND SOLVENT.
Inventors
- 👤 John R Mattson
- 👤 Roy D Mattson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:09
CPC Classifications
C; C03; C03C; C03C23/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |