US3511692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating open-top porous containers
Assignee: Sinclair Research Inc
•
Filing: 1967-11-06
•
Granted: 1970-05-12
•
Expires: 1987-11-06
Abstract
No abstract record available.
Inventors
- 👤 Richard J Pratt
- 👤 Donald E Safford
- 👤 William S Hoock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:43
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5076; C04B41/5089; C04B41/60; C04B41/61; C04B41/65; C04B41/68; C04B2111/00; C04B2111/00474; C04B2111/00948
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2025667A
Cited
US3036929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |