Patent US3453136A successfully refreshed from Google Patents.
US3453136A
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Primer for room temperature vulcanizing polyurethanes
Assignee: Dow Silicones Corp
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Filing: 1967-01-05
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Granted: 1969-07-01
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Expires: 1987-01-05
Abstract
No abstract record available.
Inventors
- 👤 Harold R Bylsma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:45
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/14; C08F230/00; C08F230/04; C08F230/08; C08F230/085; C09; C09D; C09D175/00; C09D175/04; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/10; C09J133/12; C09J143/00; C09J143/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2438612A
Cited
US2628246A
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US3109011A
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US2991204A
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US2992939A
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US3398210A
Cited
US3377371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |