US3384007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waster compacting device
Assignee: Dempster Systems Inc
•
Filing: 1967-08-09
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Granted: 1968-05-21
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Expires: 1987-08-09
Abstract
No abstract record available.
Inventors
- 👤 Daniel Q Boje
- 👤 Permutt Samuel Taylor
- 👤 Kestin Sol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:50
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/30; B30B9/3057; B30B1/00; B30B1/32; B30B1/34; B30B9/3003; B30B9/3017; B30B9/3021; B30B9/306; B30B9/3064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US537909A
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US1819480A
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US2332170A
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US3065586A
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US3103876A
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US3229622A
Cited
US3263712A
Cited
US3231107A
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US3222853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |