US2994652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing diboron tetrachloride
Assignee: Individual
•
Filing: 1959-04-06
•
Granted: 1961-08-01
•
Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Jack W Frazer
- 👤 Richard T Holzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:14
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; C; C01; C01B; C01B35/00; C01B35/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
IN A PROCESS FOR PRODUCING DIBORON TETRACHLORIDE COMPRISING THE STEPS OF PASSING GASEOUS BORON TRICHLORIDE THROUGH A CAVITY RESONATING AT A MICROWAVE FREQUENCY AND THEREAFTER RECOVERING THE DIBORON TETRACHLORIDE.
Claim 2
Dependent Claim
29 words
IN A PROCESS FOR PRODUCING DIBORON TETRACHLORIDE COMPRISING THE STEPS OF PASSING GASEOUS BORON TRICHLORIDE THROUGH A CAVITY RESONATING AT A MICROWAVE FREQUENCY AND THEREAFTER RECOVERING THE DIBORON TETRACHLORIDE.
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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |