Patent US2902138A successfully refreshed from Google Patents.
US2902138A
Expired / Lapsed
US
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Conveying system for dry cleaning and dyeing installations
Assignee: Individual
•
Filing: 1956-09-28
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Granted: 1959-09-01
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Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Oelkers Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:18
CPC Classifications
D; D06; D06B; D06B23/00; D06B23/04; D06F; D06F95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1002860A
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US1448829A
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US1821722A
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US2439115A
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US2582178A
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US2479680A
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US2640607A
Cited
BE513787A
Cited
DE894986C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |