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Patent US2049765A successfully refreshed from Google Patents.
US2049765A
Expired / Lapsed
US
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Luminescent glass and method of making same
Assignee: Individual
•
Filing: 1933-06-24
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Granted: 1936-08-04
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Expires: 1953-06-24
Abstract
No abstract record available.
Inventors
- 👤 Fischer Hellmuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:02
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/02; C03C14/00; C03C14/006; C03C3/00; C03C3/04; C03C3/076; C03C3/095; C03C4/12; E; E02; E02B; E02B11/00; E02D; E02D3/00; E02D3/02; E02D3/10; E02D3/103
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) | 1939-08-04 | 1940-02-03 | 1940-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-04 | 1944-02-03 | 1944-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-04 | 1948-02-03 | 1948-08-04 | $7700.00 | Window Closed / Lapsed |