US2615836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding vitreous enamels
Assignee: Poor and Co
•
Filing: 1944-09-27
•
Granted: 1952-10-28
•
Expires: 1964-09-27
Abstract
No abstract record available.
Inventors
- 👤 Allan E Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:33
CPC Classifications
C; C23; C23D; C23D3/00; C25; C25D; C25D5/00; C25D5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB559164A
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US2401738A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |