US3394627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansive anchoring device
Assignee: Individual
•
Filing: 1967-07-13
•
Granted: 1968-07-30
•
Expires: 1987-07-13
Abstract
No abstract record available.
Inventors
- 👤 Metcalfe Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:32
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; E; E21; E21D; E21D21/00; E21D21/008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1031462A
Cited
US1419016A
Cited
US1850768A
Cited
FR991341A
Cited
DE913838C
Cited
US3139730A
Cited
US2944437A
Cited
FR1266450A
Cited
US3247754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |