US3413775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building structure
Assignee: TUBULAR PRODUCTS Inc
•
Filing: 1966-04-13
•
Granted: 1968-12-03
•
Expires: 1986-04-13
Abstract
No abstract record available.
Inventors
- 👤 Emanuel B Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:54
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0885; E04F13/072; E04F13/073; E04F13/0736; E04F13/18; E04F19/00; E04F19/02; E04F19/06; E04F19/062; E04F19/064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US163993A
Cited
US1634862A
Cited
US1643955A
Cited
US1910554A
Cited
US2030135A
Cited
US3217456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |