Patent US2716705A successfully refreshed from Google Patents.
US2716705A
Expired / Lapsed
US
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Radiation shield
Assignee: Individual
•
Filing: 1945-03-27
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Granted: 1955-08-30
•
Expires: 1965-03-27
Abstract
No abstract record available.
Inventors
- 👤 Walter H Zinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:43
CPC Classifications
G; G21; G21C; G21C11/00; G21C11/02; G21C11/026; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A RADIATION SHIELD COMPRISING A PAIR OF SPACED LAYERS OF CONCRETE, A PLURALITY OF SPACED LAYERS OF PARAFFIN DISPOSED BETWEEN THE LAYERS OF CONCRETE, AND A LAYER OF PARAFFIN INTERMIXED WITH STEEL SHOT DISPOSED BETWEEN EACH OF THE LAYERS OF PARAFFIN.
Claim 2
Dependent Claim
41 words
A RADIATION SHIELD COMPRISING A PAIR OF SPACED LAYERS OF CONCRETE, A PLURALITY OF SPACED LAYERS OF PARAFFIN DISPOSED BETWEEN THE LAYERS OF CONCRETE, AND A LAYER OF PARAFFIN INTERMIXED WITH STEEL SHOT DISPOSED BETWEEN EACH OF THE LAYERS OF PARAFFIN.
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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) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |