US3070849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable seating equipment for circuses and the like
Assignee: Individual
•
Filing: 1957-07-19
•
Granted: 1963-01-01
•
Expires: 1977-07-19
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:58
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1222685A
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US1301107A
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US1477242A
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US2061465A
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US2245825A
Cited
US2587159A
Cited
US2635889A
Cited
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Cited
US2883712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |