Patent US1591506A successfully refreshed from Google Patents.
Patent US2716989A successfully refreshed from Google Patents.
US2716989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating metal parts
Assignee: Holcroft and Co
•
Filing: 1950-06-05
•
Granted: 1955-09-06
•
Expires: 1970-06-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Joy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:18
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/044; B65G49/045; B65G49/0454; B65G49/0459
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |