US2549762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing tubulated bulbs from glass tubing
Assignee: International Standard Electric Corp
•
Filing: 1945-08-07
•
Granted: 1951-04-24
•
Expires: 1965-08-07
Abstract
No abstract record available.
Inventors
- 👤 Baker Leslie Charles
- 👤 Haines John Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:18
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/207; C03B23/213; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1547706A
Cited
US2151840A
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US2169315A
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US2100656A
Cited
US2272927A
Cited
US2270162A
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US2306163A
Cited
US2350220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |