US3427960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compacting machine
Assignee: Western Research & Scient Lab
•
Filing: 1966-04-21
•
Granted: 1969-02-18
•
Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 Guy C Napolitano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:04
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/30; B30B9/3075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US737425A
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US1855221A
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US2379371A
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US3009413A
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US3040654A
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US3213784A
Cited
GB1043441A
Cited
US3339335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |