Patent US3030434A successfully refreshed from Google Patents.
US3030434A
Expired / Lapsed
US
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Glass melting
Assignee: Elemelt Ltd
•
Filing: 1959-06-09
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Granted: 1962-04-17
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Expires: 1979-06-09
Abstract
No abstract record available.
Inventors
- 👤 Gell Philip Anthony Maunsell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:56
CPC Classifications
C; C03; C03B; C03B7/00; C03B7/02; C03B7/06; C03B7/07; C03B5/00; C03B5/02; C03B5/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB489207A
Cited
US2225617A
Cited
US2244267A
Cited
US2215982A
Cited
US2280101A
Cited
US2686820A
Cited
US2697125A
Cited
GB779371A
Cited
DE1019443B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |