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Patent US3038503A successfully refreshed from Google Patents.
US3038503A
Expired / Lapsed
US
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Tubular structure
Assignee: Individual
•
Filing: 1959-06-01
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Granted: 1962-06-12
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Expires: 1979-06-01
Abstract
No abstract record available.
Inventors
- 👤 William P Dingledy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:28
CPC Classifications
E; E04; E04H; E04H9/00; E04H9/04; E04H9/10; E04H7/00; E04H7/22; E04H7/24; E04H7/26; E04H7/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US77285A
Cited
US385292A
Cited
US542978A
Cited
US1097151A
Cited
DE383315C
Cited
US1600179A
Cited
US1898380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |