Patent US3380580A successfully refreshed from Google Patents.
US3380580A
Expired / Lapsed
US
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Rolled sheet material
Assignee: Flex-O-Glass Inc
•
Filing: 1966-06-24
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Granted: 1968-04-30
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Expires: 1986-06-24
Abstract
No abstract record available.
Inventors
- 👤 Warp Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:51
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/67; B29; B29C; B29C53/00; B29C53/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1158537A
Cited
US1693477A
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US1944229A
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US2274712A
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US2190879A
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US2321642A
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US2673643A
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US3016137A
Cited
US3050214A
Cited
US3103298A
Cited
US3163275A
Cited
US3248005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |