US3420790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene-natural wax emulsions for the coating of fruits and vegetables
Assignee: Yeda Research and Development Co Ltd
•
Filing: 1965-12-22
•
Granted: 1969-01-07
•
Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 Saul Alexander Gassner
- 👤 Esther Hellinger
- 👤 Aharon Katchalsky
- 👤 David Vofsi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2213557A
Cited
US2275659A
Cited
US2640040A
Cited
US2700025A
Cited
US2873263A
Cited
US2964487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |