US2396873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass enamel compositions
Assignee: Harshaw Chemical Co
•
Filing: 1944-09-28
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Granted: 1946-03-19
•
Expires: 1964-09-28
Abstract
No abstract record available.
Inventors
- 👤 Robert F Morrison
- 👤 William C Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:09
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/02; C03C8/10; C03C8/12; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072
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) | 1949-03-18 | 1949-09-17 | 1950-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-18 | 1953-09-17 | 1954-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-18 | 1957-09-17 | 1958-03-19 | $7700.00 | Window Closed / Lapsed |