Patent US3509999A successfully refreshed from Google Patents.
US3509999A
Expired / Lapsed
US
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Waste disposal system
Assignee: Standard Products Co
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Filing: 1967-09-19
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Granted: 1970-05-05
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Expires: 1987-09-19
Abstract
No abstract record available.
Inventors
- 👤 James S Reid
- 👤 Harry W Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:07
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/36
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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |