US2689579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible canopy structure
Assignee: Individual
•
Filing: 1950-12-08
•
Granted: 1954-09-21
•
Expires: 1970-12-08
Abstract
No abstract record available.
Inventors
- 👤 Osvaldo F Sartori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:07
CPC Classifications
B; B63; B63B; B63B17/00; B63B17/02; Y; Y10; Y10S; Y10S135/00; Y10S135/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US84199A
Cited
US215476A
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US514890A
Cited
US556580A
Cited
US614364A
Cited
FR454963A
Cited
US2488305A
Cited
US2462560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |