Patent US2549359A successfully refreshed from Google Patents.
US2549359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for sealing in miniature incandescent lamp bulb mounts
Assignee: Tung Sol Lamp Works Inc
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Filing: 1945-02-07
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Granted: 1951-04-17
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Expires: 1965-02-07
Abstract
No abstract record available.
Inventors
- 👤 Frank E Bakanau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:04
CPC Classifications
H; H01; H01K; H01K3/00; H01K3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US966571A
Cited
US1491436A
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US1716167A
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US1742153A
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US1842184A
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US2023628A
Cited
US2006568A
Cited
US2185704A
Cited
US2230075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |