US3511431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siftproof cartons
Assignee: Individual
•
Filing: 1968-01-04
•
Granted: 1970-05-12
•
Expires: 1988-01-04
Abstract
No abstract record available.
Inventors
- 👤 Stanley Milton Silver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:52
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/0227; Y; Y10; Y10S; Y10S206/00; Y10S206/807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126143A
Cited
US88165A
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US1199535A
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US1976980A
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US2341845A
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US2415869A
Cited
US2524032A
Cited
US2830505A
Cited
US3194473A
Cited
US3297229A
Cited
US3341105A
Cited
US3394866A
Cited
US3366308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |