US3783000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing water-proof asphalt materials
Assignee: Mitsuboshi Sangyo Co Ltd
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Filing: 1971-06-09
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Granted: 1974-01-01
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Expires: 1991-06-09
Abstract
Abstract GRANULAR, POWDERY AND FLAKY ASPHALTS ARE USED FOR PAVING ROAD SURFACES, PREPARING WATER-PROOF ROOFING MATERIALS AND FILLING JOINTS BETWEEN BLOCKS, AS WELL AS OTHER USES. THIS ASPHALT MAY BE MIXED WITH AGGREGATES AT THE WORK SITE RATHER THAN AT AN ASPHALT MIXING PLANT.
Inventors
- 👤 T Takase
- 👤 T Hayashi
- 👤 H Saitoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:45
CPC Classifications
E; E04; E04D; E04D7/00; C; C09; C09D; C09D195/00; C09D195/005; E01; E01C; E01C7/00; E01C7/08; E01C7/18; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04D5/00; E04D5/02; Y; Y10; Y10T; Y10T428/00; Y10T428/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |