US2340729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of feeding molten glass
Assignee: Hartford Empire Co
•
Filing: 1939-07-14
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Granted: 1944-02-01
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Expires: 1959-07-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William T Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:51
CPC Classifications
C; C03; C03B; C03B7/00; C03B7/08; B; B65; B65G; B65G51/00; B65G51/04; B65G51/36; B65G51/40; B65G51/42; C03B7/086; C03B7/088; C03B7/10
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) | 1947-01-31 | 1947-08-02 | 1948-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-31 | 1951-08-02 | 1952-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-31 | 1955-08-02 | 1956-02-01 | $7700.00 | Window Closed / Lapsed |