US2904938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arbor
Assignee: Nachi Machining Technology Co
•
Filing: 1957-05-20
•
Granted: 1959-09-22
•
Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Bassoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:30
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US483288A
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USRE20457E
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US640669A
Cited
US796466A
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US905524A
Cited
US1402794A
Cited
US2044405A
Cited
US2025834A
Cited
US2167282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |