Patent US5436566A successfully refreshed from Google Patents.
US2582081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutron-absorbing borate glass
Assignee: Eastman Kodak Co
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Filing: 1950-08-11
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Granted: 1952-01-08
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Expires: 1970-08-11
Abstract
No abstract record available.
Inventors
- 👤 Sun Kuan-Han
- 👤 Thomas E Callear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:06
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/14; G; G21; G21F; G21F1/00; G21F1/02; G21F1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A NEUTRON-ABSORBING, OPTICAL, BORATE GLASS OF THE SYSTEM CDO-INO1.5-BO1.5 CONTAINING BY WEIGHT AS ESSENTIAL INGREDIENTS: CADMIUM OXIDE 45 TO 69 PER CENT; INDIUM OXIDE, 2 TO 21 PER CENT:
Claim 2
Dependent Claim
29 words
A NEUTRON-ABSORBING, OPTICAL, BORATE GLASS OF THE SYSTEM CDO-INO1.5-BO1.5 CONTAINING BY WEIGHT AS ESSENTIAL INGREDIENTS: CADMIUM OXIDE 45 TO 69 PER CENT; INDIUM OXIDE, 2 TO 21 PER CENT:
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) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |