US3380580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolled sheet material
Assignee: Flex-O-Glass Inc
•
Filing: 1966-06-24
•
Granted: 1968-04-30
•
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 14:56
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/67; B29; B29C; B29C53/00; B29C53/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1158537A
Cited
US1693477A
Cited
US1944229A
Cited
US2274712A
Cited
US2190879A
Cited
US2321642A
Cited
US2673643A
Cited
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 |