US3463137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jig for precision refractory cutting
Assignee: Lukens Inc
•
Filing: 1966-10-03
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Granted: 1969-08-26
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Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Maurice J Hare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:17
CPC Classifications
B; B28; B28D; B28D7/00; B28D7/04; B28D7/043; Y; Y10; Y10S; Y10S269/00; Y10S269/902
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) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |