Patent US3249464A successfully refreshed from Google Patents.
US3249464A
Expired / Lapsed
US
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Molded and laminated siliceous articles and methods of preparing same
Assignee: Dow Silicones Corp
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Filing: 1962-02-02
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Granted: 1966-05-03
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Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 Lee E Nelson
- 👤 Edwin P Plueddemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:29
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/04; C08F30/08; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C03C25/00; C03C25/10; C03C25/24; C03C25/40; C08G; C08G77/00; C08K; C08K9/00; C08K9/04; C08K9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A SILICEOUS MATERIAL, THE SURFACE OF WHICH IS COATED WITH A DRY LAYER CONSISTING ESSENTIALLY OF A SILOXANE OF A UNIT FORMULA
Claim 2
Dependent Claim
22 words
A SILICEOUS MATERIAL, THE SURFACE OF WHICH IS COATED WITH A DRY LAYER CONSISTING ESSENTIALLY OF A SILOXANE OF A UNIT FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |