US3050402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of packaging a foodstuff
Assignee: WR Grace and Co
•
Filing: 1959-07-22
•
Granted: 1962-08-21
•
Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 Robert L Dreyfus
- 👤 John W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:33
CPC Classifications
B; B32; B32B; B32B27/00; B65; B65D; B65D75/00; B65D75/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2683894A
Cited
US2621129A
Cited
US2715075A
Cited
US2808192A
Cited
US2844517A
Cited
US2865765A
Cited
US2878174A
Cited
US2877500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |