US3419136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package for flat articles such as surgical sponges
Assignee: Pratt Manufacturing Corp
•
Filing: 1967-08-29
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Granted: 1968-12-31
•
Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Robert H Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:45
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; A; A61; A61F; A61F15/00; A61F15/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932749A
Cited
US1977759A
Cited
US2069549A
Cited
US2668769A
Cited
US2990948A
Cited
US3062371A
Cited
US3338019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |