US3533205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall construction
Assignee: Flintkote Co
•
Filing: 1968-07-29
•
Granted: 1970-10-13
•
Expires: 1988-07-29
Abstract
No abstract record available.
Inventors
- 👤 Paul Pestel
- 👤 Albert L Lankford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:08
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1073829A
Cited
US1277513A
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US2056328A
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US2089942A
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US2283167A
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US2851740A
Cited
US2907199A
Cited
US2909821A
Cited
US3232018A
Cited
FR1407093A
Cited
US3429090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |