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Patent US3462839A successfully refreshed from Google Patents.
US3462839A
Expired / Lapsed
US
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Dental compositions and process
Assignee: Dow Chemical Co
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Filing: 1966-06-10
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Granted: 1969-08-26
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Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Boyer
- 👤 Dallas G Grenley
- 👤 Robert H Anspaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
C; C09; C09J; C09J127/00; C09J127/02; C09J127/04; C09J127/08; A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887; C08; C08L; C08L2666/00; C08L2666/54
Claims Analysis
Total Claims: 0
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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) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |