US3073022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shot-peening treatments
Assignee: Motors Liquidation Co
•
Filing: 1959-04-03
•
Granted: 1963-01-15
•
Expires: 1979-04-03
Abstract
No abstract record available.
Inventors
- 👤 John J Bush
- 👤 Raymond L Mattson
- 👤 Roberts James George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:59
CPC Classifications
C; C21; C21D; C21D7/00; C21D7/02; C21D7/04; C21D7/06; Y; Y10; Y10S; Y10S29/00; Y10S29/036; Y10T; Y10T29/00; Y10T29/47; Y10T29/49; Y10T29/49609
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A METHOD OF INCREASING THE FATIGUE LIFE OF A METAL PART WHICH COMPRISES APPLYING AN INITIAL PARTICLE BLAST TREATMENT TO A SURFACE OF A METAL PART AND THEREAFTER FURTHER SUBJECTING SAID SURFACE TO ANOTHER PARTICLE BLAST OF AT LESSER INTENSITY AND SMALLER PARTICLE SIZE THEN WAS EMPLOYED IN SAID INITIAL PARTICLE BLAST TREATMENT.
Claim 2
Independent Claim
53 words
A METHOD OF INCREASING THE FATIGUE LIFE OF A METAL PART WHICH COMPRISES APPLYING AN INITIAL PARTICLE BLAST TREATMENT TO A SURFACE OF A METAL PART AND THEREAFTER FURTHER SUBJECTING SAID SURFACE TO ANOTHER PARTICLE BLAST OF AT LESSER INTENSITY AND SMALLER PARTICLE SIZE THEN WAS EMPLOYED IN SAID INITIAL PARTICLE BLAST TREATMENT.
References Cited (Backward Citations)
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Cited
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US1944609A
Cited
US1946340A
Cited
US2077639A
Cited
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Cited
US2341674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |