US2597585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass melting method and apparatus
Assignee: Individual
•
Filing: 1949-07-01
•
Granted: 1952-05-20
•
Expires: 1969-07-01
Abstract
No abstract record available.
Inventors
- 👤 George E Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:44
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/26; C03B5/262; C03B3/00; C03B3/02; C03B5/04; C03B5/12; C03B5/20; C03B5/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US805139A
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US1217340A
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US1610376A
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US1889510A
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USRE20828E
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US2114545A
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US2262069A
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US2294373A
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GB614200A
Cited
US2508629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |