US2807975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory packing machine
Assignee: Hercules Powder Co
•
Filing: 1953-04-01
•
Granted: 1957-10-01
•
Expires: 1973-04-01
Abstract
No abstract record available.
Inventors
- 👤 Walter S Bohlman
- 👤 Jr Jack D Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:41
CPC Classifications
F; F42; F42B; F42B33/00; F42B33/02; F42B33/025; F42B33/0257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US218658A
Cited
US1434583A
Cited
FR808489A
Cited
US2150913A
Cited
US2379230A
Cited
US2298252A
Cited
US2404434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |