US2798228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste disposal system
Assignee: Individual
•
Filing: 1954-03-29
•
Granted: 1957-07-09
•
Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Carl F Boester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:07
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1242; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US327269A
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US1303358A
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US691365A
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US1139024A
Cited
US1996325A
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US1963354A
Cited
US2249739A
Cited
US2414964A
Cited
US2622858A
Cited
US2604633A
Cited
US2724837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |