US2778406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphaltic composite monolithic shield
Assignee: Gulf State Asphalt Co
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Filing: 1955-09-08
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Granted: 1957-01-22
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Expires: 1975-09-08
Abstract
No abstract record available.
Inventors
- 👤 Lloyd F Bramble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:23
CPC Classifications
F; F16; F16L; F16L57/00; F16L1/00; F16L1/024; F16L1/06; F16L1/11; F16L57/06; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259
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) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |