US3148160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent radiation shields
Assignee: Eastman Kodak Co
•
Filing: 1961-06-19
•
Granted: 1964-09-08
•
Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Carl J Malm
- 👤 Jr Robert F Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:08
CPC Classifications
G; G21; G21F; G21F1/00; G21F1/02; G21F1/10; G21F7/00; G21F7/02; G21F7/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A TRANSPARENT SHIELD FOR REDUCING THE TRANSMISSION OF HARMFUL SHORT WAVE LENGTH RADIATIONS,CONSISTING ESSENTIALLY OF ETHYL CELLULOSE AND AT LEAST 10% BY WEIGHT OF A LEAD SALT OF A BRANCHED CHAIN FATTY ACID.
Claim 2
Dependent Claim
33 words
A TRANSPARENT SHIELD FOR REDUCING THE TRANSMISSION OF HARMFUL SHORT WAVE LENGTH RADIATIONS,CONSISTING ESSENTIALLY OF ETHYL CELLULOSE AND AT LEAST 10% BY WEIGHT OF A LEAD SALT OF A BRANCHED CHAIN FATTY ACID.
References Cited (Backward Citations)
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Cited
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Cited
US2441945A
Cited
US2403794A
Cited
US2748099A
Cited
US2845660A
Cited
GB851602A
Cited
US3025403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |