US3177084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making carbide-coated graphite dies and coated article
Assignee: British Aluminum Co Ltd
•
Filing: 1961-04-20
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Granted: 1965-04-06
•
Expires: 1981-04-20
Abstract
No abstract record available.
Inventors
- 👤 Amstein Edmund Hollis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:08
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/522; B; B21; B21J; B21J13/00; B21J13/02; B22; B22C; B22C3/00; C04B35/58; C04B35/5805; C04B35/58064; C04B35/58071; C04B35/622; C04B35/64; C04B35/645; C04B41/00; C04B41/45; C04B41/50; C04B41/5053; C04B41/5057; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A GRAPHITE DIE FOR USE IN A HIGH TEMPERATURE HOT PRESSING PROCESS HAVING DISPOSED ON THE SURFACES DEFINING A DIE CAVITY A FIRED COATING COMPRISING A FILM OF A CARBIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, NIOBIUM, TANTALUM, CHRO-
Claim 2
Dependent Claim
46 words
A GRAPHITE DIE FOR USE IN A HIGH TEMPERATURE HOT PRESSING PROCESS HAVING DISPOSED ON THE SURFACES DEFINING A DIE CAVITY A FIRED COATING COMPRISING A FILM OF A CARBIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, NIOBIUM, TANTALUM, CHRO-
References Cited (Backward Citations)
US2860075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |