Patent US3447428A successfully refreshed from Google Patents.
US3447428A
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Method for making a pouch of laminated sheet material
Assignee: Reynolds Metals Co
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Filing: 1966-02-16
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Granted: 1969-06-03
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Donald R Crane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:45
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/18; B65D33/20; A; A24; A24F; A24F23/00; A24F23/02; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B65D31/00; B65D31/02; B31; B31B; B31B2155/00; B31B2160/00; B31B2160/10; B31B2170/00; B31B2170/20; B31B70/00; B31B70/60; B31B70/61
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2224017A
Cited
US2560535A
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US2536773A
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US3181438A
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US3332324A
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US3246833A
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US3343663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |