Patent US3547457A successfully refreshed from Google Patents.
US3547457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package for shipping large surface filter layers
Assignee: Seitz Asbest Werke Teo and Geo Seitz
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Filing: 1968-03-28
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Granted: 1970-12-15
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Expires: 1988-03-28
Abstract
No abstract record available.
Inventors
- 👤 Heinz Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/02; B65D71/0088; B65D2519/00; B65D2519/00004; B65D2519/00258; B65D2519/00283; B65D2519/00293; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00338; B65D2519/00736; B65D2519/00776; B65D2519/00781; B65D2571/00; B65D2571/00006; B65D2571/00055; B65D2571/0008; B65D2571/00086; B65D2571/00111
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |