US3068970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall structure
Assignee: Atlantic Richfield Co
•
Filing: 1959-02-26
•
Granted: 1962-12-18
•
Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Harry B Neal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:42
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/88; E04B2/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2015447A
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US2475885A
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GB636852A
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USRE24133E
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US2808136A
Cited
US2800983A
Cited
GB790691A
Cited
US2771970A
Cited
US2788099A
Cited
US2885040A
Cited
FR1157253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |