US3387414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible boom
Assignee: Melpar Inc
•
Filing: 1965-10-23
•
Granted: 1968-06-11
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Charles D Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:40
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1235; E; E04; E04C; E04C3/00; E04C3/005; H01Q1/08; H01Q1/085; H01Q1/087; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA619904A
Cited
US2352526A
Cited
US3017729A
Cited
US2980245A
Cited
US3144215A
Cited
US3144104A
Cited
US3177987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |