US3455539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barbed strip
Assignee: JAMES G LOOFBOURROW
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Filing: 1967-06-05
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Granted: 1969-07-15
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Expires: 1987-06-05
Abstract
No abstract record available.
Inventors
- 👤 James G Loofbourrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:54
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/02; E04H17/04; E04H17/045; B; B21; B21F; B21F25/00
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) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |