US3695989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold water soluble foam plastic package
Assignee: ROBERT E ALBERT
•
Filing: 1970-08-12
•
Granted: 1972-10-03
•
Expires: 1990-08-12
Abstract
Abstract COLD WATER SOLUBLE PACKAGES CAN BE MADE FROM FOAMED FILMS OF POLYVINYL ALCOHOL, POLYVINYL PYRROLIDONE OR MIXTURES OF THE TWO. THE FILM HAS DISPERSED WITHIN IT A VOLUME OF GAS EQUAL TO FROM 80 TO 99% OF THE TOTAL VOLUME OF THE FILM IN THE FORM OF BUBBLES HAVING AN AVERAGE DIAMETER LESS THAN 1/3 OF THE THICKNESS OF THE FILM.
Inventors
- 👤 Robert E Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:32
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; B; B65; B65D; B65D65/00; B65D65/38; B65D65/44; Y; Y10; Y10S; Y10S220/00; Y10S220/30; Y10T; Y10T428/00; Y10T428/23; Y10T428/231
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |