US3020377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article perforation and food preservation
Assignee: HUSSMAN ENGINEERING CORP
•
Filing: 1958-04-21
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Granted: 1962-02-06
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Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Robert W Shawfrank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:57
CPC Classifications
A; A23; A23N; A23N15/00; A23N15/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123063A
Cited
US1250140A
Cited
US1425079A
Cited
US1704367A
Cited
US1845748A
Cited
US2427588A
Cited
US2436251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |