US3072983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor deposition of tungsten
Assignee: Individual
•
Filing: 1960-05-31
•
Granted: 1963-01-15
•
Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Brenner Abner
- 👤 Jr Walter E Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:16
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5133; C04B41/80; C04B41/81; C04B41/85; C04B41/88; C23; C23C; C23C16/00; C23C16/01; C23C16/06; C23C16/08; C23C16/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
THE PROCESS OF COATING AN OBJECT WITH SUBSTANTIALLY PURE TUNGSTEN COMPRISING THE STEPS OF HEATING SAID OBJECT AT A TEMPERATURE ABOUT 300*C. THEN SUBJECTING SAID OBJECT TO A VAPOR COMPRISING BUNGSTEN HEXAFLUORIDE GAS AND HYDROGEN GAS.
Claim 2
Dependent Claim
36 words
THE PROCESS OF COATING AN OBJECT WITH SUBSTANTIALLY PURE TUNGSTEN COMPRISING THE STEPS OF HEATING SAID OBJECT AT A TEMPERATURE ABOUT 300*C. THEN SUBJECTING SAID OBJECT TO A VAPOR COMPRISING BUNGSTEN HEXAFLUORIDE GAS AND HYDROGEN GAS.
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) | 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 |