US3455432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Armoured flexible conveyors
Assignee: Dowty Meco Ltd
•
Filing: 1967-06-28
•
Granted: 1969-07-15
•
Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Gordon Bertram Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:41
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/18; E; E21; E21C; E21C35/00; E21C35/20; E21F; E21F13/00; E21F13/06; E21F13/066
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB994960A
Cited
US3363946A
Cited
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 |