US3479788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging
Assignee: WR Grace and Co
•
Filing: 1968-04-25
•
Granted: 1969-11-25
•
Expires: 1988-04-25
Abstract
No abstract record available.
Inventors
- 👤 Robert L Dreyfus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:38
CPC Classifications
B; B65; B65B; B65B53/00; B65B53/02; B65B53/06; B65D; B65D2571/00; B65D2571/00006; B65D2571/00012; B65D2571/00018; B65D2571/00024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2668403A
Cited
US3113874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |