US3544499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonium modified water soluble surface coatings
Assignee: Dow Chemical Co
•
Filing: 1966-10-14
•
Granted: 1970-12-01
•
Expires: 1986-10-14
Abstract
No abstract record available.
Inventors
- 👤 Melvin J Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:56
CPC Classifications
C; C09; C09D; C09D143/00; C09D143/02; C08; C08F; C08F28/00; C08F8/00; C08F8/34; C09D125/00; C09D125/18; C09D141/00; C08F2800/00; C08F2800/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |