Patent US3520844A successfully refreshed from Google Patents.
US3520844A
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Polyester resin modified solution vinyl resin coating compositions
Assignee: Sherwin Williams Co
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Filing: 1967-10-12
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Granted: 1970-07-21
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Expires: 1987-10-12
Abstract
No abstract record available.
Inventors
- 👤 Jerry D Pontius
- 👤 Meredith F Taylor
- 👤 Caesar W Tieri Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:49
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C09D167/00; C08; C08L; C08L67/00; C08L67/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2647099A
Cited
US3281498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |