US3112015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mast construction
Assignee: Beatty Bros Ltd
•
Filing: 1960-02-15
•
Granted: 1963-11-26
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Expires: 1980-02-15
Abstract
No abstract record available.
Inventors
- 👤 Harry M Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:53
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/02; E04H12/08; E04H12/10
Claims Analysis
Total Claims: 0
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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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |