US2665525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide tube operating means for glass feeders
Assignee: HENRY C DAUBENSPECK
•
Filing: 1950-08-05
•
Granted: 1954-01-12
•
Expires: 1970-08-05
Abstract
No abstract record available.
Inventors
- 👤 Harold A Youkers
- 👤 Walter V Vierling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:40
CPC Classifications
C; C03; C03B; C03B7/00; C03B7/14; C03B7/16; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/4453; Y10T74/00; Y10T74/19; Y10T74/1956
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US392133A
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US595103A
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US871110A
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US1243364A
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US1619432A
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US1531559A
Cited
US1531560A
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US1685098A
Cited
US1755397A
Cited
US2038519A
Cited
US2209018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |