US3415260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible canopy structure
Assignee: Individual
•
Filing: 1967-07-17
•
Granted: 1968-12-10
•
Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:24
CPC Classifications
E; E04; E04F; E04F10/00; E04F10/02; B; B60; B60P; B60P7/00; B60P7/02; E04H; E04H15/00; E04H15/32; E04H15/34; E04H15/44; E04H15/48; E04H15/52; Y; Y10; Y10S; Y10S135/00; Y10S135/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |