US3469305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preventing cracking of machine parts
Assignee: Mitsubishi Heavy Industries Ltd
•
Filing: 1964-08-06
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Granted: 1969-09-30
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Expires: 1984-08-06
Abstract
No abstract record available.
Inventors
- 👤 Hajime Tamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:54
CPC Classifications
B; B23; B23P; B23P6/00; B23P6/04; F; F02; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B2075/027; F02B2275/00; F02B2275/14; F02B3/00; F02B3/06; F02F2001/008; F02F2001/244; F02F2001/247; F02F2001/248; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49746; Y10T29/4998; Y10T29/49982; Y10T29/49986
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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |