US3574033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying a quantity of indium to the inner wall of a lamp bulb
Assignee: US Philips Corp
•
Filing: 1968-02-02
•
Granted: 1971-04-06
•
Expires: 1988-02-02
Abstract
Abstract A METHOD OF ATTACHING A QUANTITY OF INDIUM MATERIAL TO THE INNER WALLS OF A LAMP BULB, BY URGING THE MATERIAL AGAINST THE WALL WITH A ROLLER AND MOVING THE ROLLER CLOCKWISE AND COUNTER-CLOCKWISE ALTERNATELY.
Inventors
- 👤 Dirk Kolkman
- 👤 Cornelis Johannes Adrianu Heck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:38
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/38; H01J9/395; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |