US2901227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Johns Manville Corp
•
Filing: 1956-11-27
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Granted: 1959-08-25
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Expires: 1976-11-27
Abstract
No abstract record available.
Inventors
- 👤 Gaillard R Russum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:13
CPC Classifications
B; B01; B01F; B01F29/00; B01F29/40; B01F29/401; B01F29/4011; B01F29/40119; B01F29/401195; B01F29/60; B01F29/62; B01F29/402; B01F29/4021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |