Patent US2895644A successfully refreshed from Google Patents.
US2895644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportioning apparatus
Assignee: H V HARDMAN CO Inc
•
Filing: 1956-10-18
•
Granted: 1959-07-21
•
Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Pande Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US861366A
Cited
US879016A
Cited
US1023411A
Cited
US1051171A
Cited
US2036810A
Cited
US1907731A
Cited
US1997370A
Cited
US1964028A
Cited
US2224797A
Cited
US2312111A
Cited
US2354634A
Cited
US2737978A
Cited
US2627453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |