Patent US2028310A successfully refreshed from Google Patents.
US3486935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of films containing radioactive materials and mounted on carriers
Assignee: Gesellschaft fuer Kernforschung mbH
•
Filing: 1966-09-29
•
Granted: 1969-12-30
•
Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 Karl Werner Eyrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:08
CPC Classifications
H; H05; H05H; H05H6/00; Y; Y10; Y10S; Y10S376/00; Y10S376/916
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD FOR THE PREPARATION OF A SOLID FILM CONTAINING A RADIOACTIVE GAS, SAID METHOD COMPRISING INSERTING INTO A VACUM CHAMBER A GENERALLY CYLINDRICAL CARRIER FOR RECEIVING A FILM DEPOSIT OF A METAL CAPABLE OF ABSORBING SAID RADIOACTIVE GAS, DEPOSITING SAID METAL FILM ON THE INSIDE SURFACE OF SAID CARRIER BY VACUUM EVAPORATION TECHNIQUES, FEEDING SAID RADIOACTIVE GAS INTO SAID VACUUM CHAMBER AND IN CONTACT WITH SAID FILM WHEREBY SAID METAL FILMS BECOMES SATURATED WITH SAID RADIOACTIVE GAS AND REMOVING THE REMAINDER OF THE RADIOACTIVE GAS WHICH IS NOT ABSORBED IN THE METAL FILM.
Claim 2
Independent Claim
94 words
A METHOD FOR THE PREPARATION OF A SOLID FILM CONTAINING A RADIOACTIVE GAS, SAID METHOD COMPRISING INSERTING INTO A VACUM CHAMBER A GENERALLY CYLINDRICAL CARRIER FOR RECEIVING A FILM DEPOSIT OF A METAL CAPABLE OF ABSORBING SAID RADIOACTIVE GAS, DEPOSITING SAID METAL FILM ON THE INSIDE SURFACE OF SAID CARRIER BY VACUUM EVAPORATION TECHNIQUES, FEEDING SAID RADIOACTIVE GAS INTO SAID VACUUM CHAMBER AND IN CONTACT WITH SAID FILM WHEREBY SAID METAL FILMS BECOMES SATURATED WITH SAID RADIOACTIVE GAS AND REMOVING THE REMAINDER OF THE RADIOACTIVE GAS WHICH IS NOT ABSORBED IN THE METAL FILM.
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |