US2528860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article holding means
Assignee: WRIGHT MACHINERY CO
•
Filing: 1949-07-05
•
Granted: 1950-11-07
•
Expires: 1969-07-05
Abstract
No abstract record available.
Inventors
- 👤 Robert A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:05
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/02; B65; B65C; B65C9/00; B65C9/06; B65C9/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1336028A
Cited
US652677A
Cited
US1515962A
Cited
US1712907A
Cited
US2115061A
Cited
US2106997A
Cited
US2112119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |