US3502149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing composition and method of use thereof
Assignee: Dow Chemical Co
•
Filing: 1967-04-07
•
Granted: 1970-03-24
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Expires: 1987-04-07
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Pence Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:14
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/40; C09K17/48; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/512; Y; Y10; Y10S; Y10S507/00; Y10S507/903; Y10S507/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3114651A
Cited
US3265657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |