US3291977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible lamp
Assignee: Individual
•
Filing: 1964-08-10
•
Granted: 1966-12-13
•
Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 James E Nafe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:52
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN EXTENSIBLE LAMP COMPRISING A SUPPORT INCLUDING A SUBSTANTIALLY VERTICAL TUBULAR BRACKET, A PLURALITY OF RIGID TUBULAR INTERMEDIATE SECTIONS, A TUBULAR RIGID END SECTION, SAID TUBULAR BRACKET, TUBULAR INTERMEDIATE SECTIONS AND TUBULAR END SECTION BEING ROTATABLY CONNECTED END TO END, SAID ROTATABLE CONNECTIONS CONSTITUTING TELESCOPIC INTERFITTING SUBSTANTIALLY VERTICAL RELATIVELY ROTATABLE PARTS HAVING COMMUNICATING BORES AND A CIRCUMFERENTIAL SHOULDER ON ONE PART ENGAGING THE END OF THE OTHER PART, SAID INTERMEDIATE SECTIONS HAVIN G SUBSTANTIALLY PARALLEL END AND VERTICAL PORTIONS AND A CENTRAL INCLINDED PORTION EXTENDING FROM THE TOP OF ONE END PORTION TO THE BOTTOM OF OTHER END PORTION,
Claim 2
Dependent Claim
99 words
AN EXTENSIBLE LAMP COMPRISING A SUPPORT INCLUDING A SUBSTANTIALLY VERTICAL TUBULAR BRACKET, A PLURALITY OF RIGID TUBULAR INTERMEDIATE SECTIONS, A TUBULAR RIGID END SECTION, SAID TUBULAR BRACKET, TUBULAR INTERMEDIATE SECTIONS AND TUBULAR END SECTION BEING ROTATABLY CONNECTED END TO END, SAID ROTATABLE CONNECTIONS CONSTITUTING TELESCOPIC INTERFITTING SUBSTANTIALLY VERTICAL RELATIVELY ROTATABLE PARTS HAVING COMMUNICATING BORES AND A CIRCUMFERENTIAL SHOULDER ON ONE PART ENGAGING THE END OF THE OTHER PART, SAID INTERMEDIATE SECTIONS HAVIN G SUBSTANTIALLY PARALLEL END AND VERTICAL PORTIONS AND A CENTRAL INCLINDED PORTION EXTENDING FROM THE TOP OF ONE END PORTION TO THE BOTTOM OF OTHER END PORTION,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |