US3275789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum brazing system
Assignee: Varian Medical Systems Inc
•
Filing: 1963-09-09
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Granted: 1966-09-27
•
Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 William A Lloyd
- 👤 Zaphiropoulos Renn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:08
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; B; B23; B23K; B23K1/00; B23K1/008; H01J5/00; H01J5/20; H01J2893/00; H01J2893/0033; H01J2893/0037
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A VACUUM BRAZING SYSTEM COMPRISING: AN EVACUABLE CHAMBER HAVING AN ENTRANCE-EXIT PORT; MEANS FOR EVACUATING SAID CHAMBER IN COMMUNICATION WITH SAID CHAMBER; A PLURALITY OF SPACED STATIONS WITHIN SAID CHAMBER; MEANS FOR RECEIVING ARTICLES TO BE BRAZED; A MOVABLE TABLE SERVING TO CARRY SAID ARTICLE RECEIVING MEANS; A VACUUM LOCK DEVICE COMPRISING A MOVEABLE ENTRANCE-EXIT CHAMBER HAVING AN OPEN END FOR RECEIVING SAID ARTICLE RECEIVING MEANS THEREIN; SAID ENTRANCE-EXIT CHAMBER ADAPTED TO BE MOUNTED IN GAS TIGHT COMMUNICATION TO SAID EVACUABLE CHAMBER WITH SAID OPEN END ALIGNED WITH SAID ENTRANCE-EXIT PORT; SAID ENTRANCE-EXIT CHAMBER FORMING, WHEN SO MOUNTED A CONTINUOUS VACUUM WALL WITH SAID EVACUATED CHAMBER;
Claim 2
Dependent Claim
106 words
A VACUUM BRAZING SYSTEM COMPRISING: AN EVACUABLE CHAMBER HAVING AN ENTRANCE-EXIT PORT; MEANS FOR EVACUATING SAID CHAMBER IN COMMUNICATION WITH SAID CHAMBER; A PLURALITY OF SPACED STATIONS WITHIN SAID CHAMBER; MEANS FOR RECEIVING ARTICLES TO BE BRAZED; A MOVABLE TABLE SERVING TO CARRY SAID ARTICLE RECEIVING MEANS; A VACUUM LOCK DEVICE COMPRISING A MOVEABLE ENTRANCE-EXIT CHAMBER HAVING AN OPEN END FOR RECEIVING SAID ARTICLE RECEIVING MEANS THEREIN; SAID ENTRANCE-EXIT CHAMBER ADAPTED TO BE MOUNTED IN GAS TIGHT COMMUNICATION TO SAID EVACUABLE CHAMBER WITH SAID OPEN END ALIGNED WITH SAID ENTRANCE-EXIT PORT; SAID ENTRANCE-EXIT CHAMBER FORMING, WHEN SO MOUNTED A CONTINUOUS VACUUM WALL WITH SAID EVACUATED CHAMBER;
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |