Patent US1655156A successfully refreshed from Google Patents.
US1655156A
Expired / Lapsed
US
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Method of making emanation seeds
Assignee: RADIUM EMANATION Corp
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Filing: 1925-11-13
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Granted: 1928-01-03
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Expires: 1945-11-13
Abstract
No abstract record available.
Inventors
- 👤 Muir Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:24
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; G21G4/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-01-02 | 1931-07-04 | 1932-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-01-02 | 1935-07-04 | 1936-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-01-02 | 1939-07-04 | 1940-01-03 | $7700.00 | Window Closed / Lapsed |