US3053703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing high strengths in martensitic steels
Assignee: Individual
•
Filing: 1960-08-05
•
Granted: 1962-09-11
•
Expires: 1980-08-05
Abstract
No abstract record available.
Inventors
- 👤 Norman N Breyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:02
CPC Classifications
C; C21; C21D; C21D8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
25 TO 10% WHILE THE STEEL CONSISTS ESSENTIALLY OF MARTENSITE.
Claim 2
Independent Claim
35 words
THE METHOD OF PRODUCING STEELS OF HIGH STRENGTH COMPRISING THE STEPS OF ADVANCING A STEEL CONSISTING ESSENTIALLY OF MARTENSILE THROUGH A DIE TO EFFECT REDUCTION IN CROSS-SECTIONAL AREA BY AN AMOUNT WITHIN THE RANGE OF
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |