Patent US3640916A successfully refreshed from Google Patents.
US3640916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam producing compositions
Assignee: SC Johnson and Son Inc
•
Filing: 1968-12-16
•
Granted: 1972-02-08
•
Expires: 1988-12-16
Abstract
Abstract THE DISCLOSURE RELATES TO COMPOSITIONS AND PROCESSES FOR FORMING CELLULAR STRUCTURES. THE CO,MPOSITIONS COMPRISES AN EMULSION OF A SYNTHETIC ORGANIC POLYMER HAVING A MINIMUM FILM-FORMING TEMPERATURE OF LESS THAN ABOUT 25*C. AND, DISPERSED IN THE EMULSION, A VOLATILE ORGANIC LIQUID WHICH HAS A VAPOR PRESSURE OF AT LEAST ABOUT 2 P.S.I.A. AT ABOUT 20*C.
Inventors
- 👤 Douglas W Dill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:59
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/141; C08J9/143; C08J2333/00; C08J2333/04; C08J2333/06; Y; Y10; Y10S; Y10S521/00; Y10S521/911; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249986
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |