US2928893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated tension link
Assignee: Bullard Co
•
Filing: 1955-11-30
•
Granted: 1960-03-15
•
Expires: 1975-11-30
Abstract
No abstract record available.
Inventors
- 👤 William C Burnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:20
CPC Classifications
F; F16; F16G; F16G11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1035212A
Cited
US1164971A
Cited
US1520984A
Cited
US1502829A
Cited
US1958435A
Cited
US2213922A
Cited
US2289197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |