US3513121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous compositions for coating permeable substrates
Assignee: Temple Fields 515 Ltd
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Filing: 1967-03-27
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Granted: 1970-05-19
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 John Raymond Douglas Heaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/60; C; C09; C09D; C09D131/00; C09D131/02; C09D131/04; C09D157/00; C09D157/06; C09D157/08; D21H19/58; C08; C08L; C08L13/00; C08L13/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |