Patent US3063202A successfully refreshed from Google Patents.
US3063202A
Expired / Lapsed
US
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Interlocking concrete construction
Assignee: BETTY S SPICKLEMIER
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Filing: 1954-06-21
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Granted: 1962-11-13
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Expires: 1974-06-21
Abstract
No abstract record available.
Inventors
- 👤 Harold R Carper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:24
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/20; E04C3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1028578A
Cited
CH68760A
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US1214442A
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FR628717A
Cited
GB309083A
Cited
US2234114A
Cited
US2162872A
Cited
US2413990A
Cited
GB574496A
Cited
US2644497A
Cited
FR1064471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |