US2541599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiography
Assignee: Individual
•
Filing: 1944-10-31
•
Granted: 1951-02-13
•
Expires: 1964-10-31
Abstract
No abstract record available.
Inventors
- 👤 Morrison Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:42
CPC Classifications
G; G21; G21K; G21K4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
IN COMBINATION, A SOURCE OF HIGH ENERGY XOR GAMMA RAYS, A PHOTOGRAPHIC SURFACE, AND A FILTER OF URANIUM METAL INTERMEDIATE SAID SOURCE AND PHOTOGRAPHIC SURFACE AND IMMEDIATELY ADJACENT TO SAID PHOTOGRAPHIC SURFACE.
Claim 2
Dependent Claim
32 words
IN COMBINATION, A SOURCE OF HIGH ENERGY XOR GAMMA RAYS, A PHOTOGRAPHIC SURFACE, AND A FILTER OF URANIUM METAL INTERMEDIATE SAID SOURCE AND PHOTOGRAPHIC SURFACE AND IMMEDIATELY ADJACENT TO SAID PHOTOGRAPHIC SURFACE.
References Cited (Backward Citations)
US595812A
Cited
GB190520100A
Cited
US1626306A
Cited
GB251477A
Cited
US1933652A
Cited
US2120908A
Cited
US2216326A
Cited
US2344042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |