US3028277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light transmitting roof forming panel
Assignee: Individual
•
Filing: 1959-06-10
•
Granted: 1962-04-03
•
Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Harold S Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:21
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/24; E04D3/28; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1080990A
Cited
GB451182A
Cited
US2758342A
Cited
US2785286A
Cited
US2695256A
Cited
US2730772A
Cited
US2824399A
Cited
US2806812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |