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US3004784A
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Assignee: TUBULAR STRUCTURES CORP OF AMERICA
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Filing: 1959-07-20
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Granted: 1961-10-17
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Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Max M Selby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:11
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/04; F16B7/0406; F16B7/0413; E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2144310A
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US2281220A
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US2347534A
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US2400686A
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US2508668A
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US2920894A
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DK21084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |