US2620311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a luminous multipurpose sealer composition
Assignee: Norbal Co
•
Filing: 1950-02-28
•
Granted: 1952-12-02
•
Expires: 1970-02-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Bleecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:32
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1637963A
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US1858830A
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US2169577A
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US2259400A
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US2297033A
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US2436182A
Cited
US2472522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |