Patent US3405077A successfully refreshed from Google Patents.
US3405077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making soft polyurethane foams and product
Assignee: Dow Chemical Co
•
Filing: 1964-12-31
•
Granted: 1968-10-08
•
Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Pastor
- 👤 Lamar E Peterson
- 👤 Charles D Price
- 👤 Dounell A Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:06
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/2815; C08G18/283; C08G18/2835; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6674; C08G2110/00; C08G2110/0008; C08G2110/0041; C08G2110/005
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |