US2665867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line binder
Assignee: Northrop Grumman Corp
•
Filing: 1951-01-20
•
Granted: 1954-01-12
•
Expires: 1971-01-20
Abstract
No abstract record available.
Inventors
- 👤 John B Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:08
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/22; F16L3/223; F16L3/2235; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3444; Y10T403/00; Y10T403/44; Y10T403/71; Y10T403/7129; Y10T403/7141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US284143A
Cited
US692529A
Cited
US1277479A
Cited
US1598003A
Cited
US2039387A
Cited
US1754033A
Cited
US2209318A
Cited
US2466939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |