US3403488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building panel with a synthetic plastic shell
Assignee: Greater London Council
•
Filing: 1965-08-30
•
Granted: 1968-10-01
•
Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Davidson John Wingate
- 👤 Brooks Clive Rodon
- 👤 Voisey Edwin John
- 👤 Burton John Denis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:14
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/243; B; B01; B01J; B01J45/00; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6813
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2263806A
Cited
US2273775A
Cited
US2584626A
Cited
US2802766A
Cited
US3150032A
Cited
US3091946A
Cited
GB890513A
Cited
GB910156A
Cited
US3080267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |