US2984861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balling drum
Assignee: Beazer East Inc
•
Filing: 1959-12-07
•
Granted: 1961-05-23
•
Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Gordon L Cox
- 👤 Jr Linwood G Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:04
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2406; B; B01; B01F; B01F29/00; B01F29/25; B01F29/60; B01F29/64; B01J; B01J2/00; B01J2/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1931499A
Cited
US2311154A
Cited
US2831210A
Cited
US2726068A
Cited
US2924847A
Cited
US2920344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |