US3204721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triangulation tower
Assignee: Individual
•
Filing: 1963-10-23
•
Granted: 1965-09-07
•
Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 Park Wallace Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:31
CPC Classifications
E; E04; E04H; E04H12/00; G; G01; G01C; G01C5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN TRIANGULATION TOWER COMPRISING AN OUTER OPEN STRUCTURE AND AN INNER OPEN STRUCTURE, SAID STRUCTURE BEING MUTUALLY INDEPENDENT, A VERTICAL TUBULAR MEMBER CARRIED BY THE OUTER STRUCTURE ON THE INTERIOR OF THE INNER STRUCTURE, SAID MEMBER BEING ADAPTED TO SUPPORT A SURVEYING DEVICE, AND A PLATFORM SURROUNDING THE TUBU-
Claim 2
Dependent Claim
49 words
AN TRIANGULATION TOWER COMPRISING AN OUTER OPEN STRUCTURE AND AN INNER OPEN STRUCTURE, SAID STRUCTURE BEING MUTUALLY INDEPENDENT, A VERTICAL TUBULAR MEMBER CARRIED BY THE OUTER STRUCTURE ON THE INTERIOR OF THE INNER STRUCTURE, SAID MEMBER BEING ADAPTED TO SUPPORT A SURVEYING DEVICE, AND A PLATFORM SURROUNDING THE TUBU-
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |