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Patent US3533203A successfully refreshed from Google Patents.
US3533203A
Expired / Lapsed
US
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Compressed structural members
Assignee: Individual
•
Filing: 1969-09-04
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Granted: 1970-10-13
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Expires: 1989-09-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert Corliss Fischer
- 👤 Herbert Corliss Fischer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:13
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB452126A
Cited
US2413990A
Cited
US2652093A
Cited
US2850890A
Cited
US2825117A
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US2827414A
Cited
US2821155A
Cited
US2859936A
Cited
US2836529A
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 |